BTW, my insurance would go up 500 dollars a year for 6 years if the repair is over 499.99 dollars. I am just afraid that this person would, based on his behavior so far, tell my insurance company to cover the cost without asking me. My insurance company told me that I cannot withdraw a claim if I file it to cover the repair of another car I damage. It will be up to the other car's owner once it is filed. Downside, the insurance company won't send any adjuster unless I file a claim. So there are risks.
If he hasn't behaved in this way, I would have filed a claim already and got his car repaired.